ok maybe i should try this before asking bit oh well here goes i have made doors that triger when u walk up to them..........no can u make a horizontal door with grass texture with the same trigger to use as a boobie trap?
Tuff .. I know what you are saying. Yes you can make "automatic" doors that open when you approach them.
If you line it up horizontaly, and make sure the angle/hinge direction is correct I see no reason why you couldnt make a booby trap. You shouldnt need extra triggers.